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由煤炭科学院上海研究所、上海第一石油机械厂、萍乡矿务局共同研制的国家重点科研项目3米直径全断面岩巷掘进机,经在萍乡、迁西和雁北小峪煤矿的工业性试验,在石灰岩、片麻岩、砂岩等中硬岩石中累计掘进了1500m。最高月进尺301m,最高日进尺32m,在迁西平均月进202m。在小峪平均月进191m。实践证明,与传统的钻爆法相比,具有速度快、效率高,安全可靠、施工质量好、围岩不被破坏等
The 3-m diameter full-face rock tunnel boring machine jointly developed by Shanghai Institute of Coal Research Institute, Shanghai No. 1 Petroleum Machinery Factory and Pingxiang Mining Bureau, with its industrial properties in Pingxiang, Qianxi and Xiaoyu coal mines in Yanbei, Test, in the limestone, gneiss, sandstone and other hard rock in the excavation of a total of 1500m. The maximum monthly footage of 301m, the highest daily footage 32m, moving in the average monthly average of 202m. In Xiaoyu average monthly into 191m. Practice has proved that, compared with the traditional drilling and blasting method, with high speed, high efficiency, safe, reliable, good construction quality, rock is not destroyed